Description ADULT MALE Has large crest that can be flattened or fanned, presenting a large, gleaming white patch on otherwise dark head. Bill is dark and note beady yellow eye. Back is mainly dark and breast is white, marked with two black lines on sides, separating breast from otherwise orange-brown flanks. Eclipse male is similar to adult female, but with duller colors; retains bright eye. ADULT FEMALE Orange-buff head with long, shaggy crest. Plumage is otherwise mainly gray-brown, darkest on back; belly is white. Eye is dark. JUVENILE Similar to adult female.

Discussion Small, bizarrely shaped diving duck with slender bill and large head. Dives frequently in search of small fish and invertebrates. Male is unmistakable; size, proportions, and color in female are good means of identification.